• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号
登陆 注册

C++ PerpendicularVector函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中PerpendicularVector函数的典型用法代码示例。如果您正苦于以下问题：C++ PerpendicularVector函数的具体用法？C++ PerpendicularVector怎么用？C++ PerpendicularVector使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了PerpendicularVector函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: RotatePointAroundVector

/*
   ===============
   RotatePointAroundVector

   This is not implemented very well...
   ===============
 */
void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point,
							  float degrees ) {
	float m[3][3];
	float im[3][3];
	float zrot[3][3];
	float tmpmat[3][3];
	float rot[3][3];
	int i;
	vec3_t vr, vup, vf;
	float rad;

	vf[0] = dir[0];
	vf[1] = dir[1];
	vf[2] = dir[2];

	PerpendicularVector( vr, dir );
	CrossProduct( vr, vf, vup );

	m[0][0] = vr[0];
	m[1][0] = vr[1];
	m[2][0] = vr[2];

	m[0][1] = vup[0];
	m[1][1] = vup[1];
	m[2][1] = vup[2];

	m[0][2] = vf[0];
	m[1][2] = vf[1];
	m[2][2] = vf[2];

	memcpy( im, m, sizeof( im ) );

	im[0][1] = m[1][0];
	im[0][2] = m[2][0];
	im[1][0] = m[0][1];
	im[1][2] = m[2][1];
	im[2][0] = m[0][2];
	im[2][1] = m[1][2];

	memset( zrot, 0, sizeof( zrot ) );
	zrot[0][0] = zrot[1][1] = zrot[2][2] = 1.0F;

	rad = (float)DEG2RAD( degrees );
	zrot[0][0] = (vec_t)cos( rad );
	zrot[0][1] = (vec_t)sin( rad );
	zrot[1][0] = (vec_t)-sin( rad );
	zrot[1][1] = (vec_t)cos( rad );

	MatrixMultiply( m, zrot, tmpmat );
	MatrixMultiply( tmpmat, im, rot );

	for ( i = 0; i < 3; i++ ) {
		dst[i] = rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] * point[2];
	}
}
开发者ID:Garux，项目名称:netradiant-custom，代码行数:62，代码来源:mathlib.c


示例2: RotatePointAroundVector

void RotatePointAroundVector( vec3_t &dst, const vec3_t &dir, const vec3_t &point, float degrees )
{
	float	m[3][3];
	float	im[3][3];
	float	zrot[3][3];
	float	tmpmat[3][3];
	float	rot[3][3];
	int	i;
	vec3_t vr, vup, vf;

	vf[0] = dir[0];
	vf[1] = dir[1];
	vf[2] = dir[2];

	PerpendicularVector( vr, dir );
	//CrossProduct( vr, vf, vup );
	vup = CrossProduct( vr, vf );

	m[0][0] = vr[0];
	m[1][0] = vr[1];
	m[2][0] = vr[2];

	m[0][1] = vup[0];
	m[1][1] = vup[1];
	m[2][1] = vup[2];

	m[0][2] = vf[0];
	m[1][2] = vf[1];
	m[2][2] = vf[2];

	memcpy( im, m, sizeof( im ) );

	im[0][1] = m[1][0];
	im[0][2] = m[2][0];
	im[1][0] = m[0][1];
	im[1][2] = m[2][1];
	im[2][0] = m[0][2];
	im[2][1] = m[1][2];

	memset( zrot, 0, sizeof( zrot ) );
	zrot[0][0] = zrot[1][1] = zrot[2][2] = 1.0F;

	zrot[0][0] = cos( DEG2RAD( degrees ) );
	zrot[0][1] = sin( DEG2RAD( degrees ) );
	zrot[1][0] = -sin( DEG2RAD( degrees ) );
	zrot[1][1] = cos( DEG2RAD( degrees ) );

	R_ConcatRotations( m, zrot, tmpmat );
	R_ConcatRotations( tmpmat, im, rot );

	for ( i = 0; i < 3; i++ )
	{
		dst[i] = rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] * point[2];
	}
}
开发者ID:JoelTroch，项目名称:am_src_30jan2011，代码行数:55，代码来源:frustum.cpp


示例3: RotatePointAroundVector

/**
 * @brief Rotate a point around a given vector
 * @param[in] dir The vector around which to rotate
 * @param[in] point The point to be rotated
 * @param[in] degrees How many degrees to rotate the point by
 * @param[out] dst The point after rotation
 * @note Warning: @c dst must be different from @c point (otherwise the result has no meaning)
 * @pre @c dir must be normalized
 */
void RotatePointAroundVector (vec3_t dst, const vec3_t dir, const vec3_t point, float degrees)
{
	float m[3][3];
	float im[3][3];
	float zrot[3][3];
	float tmpmat[3][3];
	float rot[3][3];
	int i;
	vec3_t vr, vup, vf;

	vf[0] = dir[0];
	vf[1] = dir[1];
	vf[2] = dir[2];

	PerpendicularVector(vr, dir);
	CrossProduct(vr, vf, vup);

	m[0][0] = vr[0];
	m[1][0] = vr[1];
	m[2][0] = vr[2];

	m[0][1] = vup[0];
	m[1][1] = vup[1];
	m[2][1] = vup[2];

	m[0][2] = vf[0];
	m[1][2] = vf[1];
	m[2][2] = vf[2];

	memcpy(im, m, sizeof(im));

	im[0][1] = m[1][0];
	im[0][2] = m[2][0];
	im[1][0] = m[0][1];
	im[1][2] = m[2][1];
	im[2][0] = m[0][2];
	im[2][1] = m[1][2];

	OBJZERO(zrot);

	/* now prepare the rotation matrix */
	zrot[0][0] = cos(degrees * torad);
	zrot[0][1] = sin(degrees * torad);
	zrot[1][0] = -sin(degrees * torad);
	zrot[1][1] = cos(degrees * torad);
	zrot[2][2] = 1.0F;

	R_ConcatRotations(m, zrot, tmpmat);
	R_ConcatRotations(tmpmat, im, rot);

	for (i = 0; i < 3; i++) {
		dst[i] = DotProduct(rot[i], point);
	}
}
开发者ID:kevlund，项目名称:ufoai，代码行数:63，代码来源:mathlib.c


示例4: RotatePointAroundVector

/*
-----------------------------------------------------------------------------
 Function: RotatePointAroundVector -Rotate a point around a vector.

 Parameters: dst -[out] Point after rotation.
			 dir -[in] vector.
			 point -[in] Point.
			 degrees -[in] Degrees of rotation.

 Returns: Nothing.

 Notes: 
-----------------------------------------------------------------------------
*/
PUBLIC void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees ) 
{
	mat3_t	m;
	mat3_t	im;
	mat3_t	zrot;
	mat3_t	tmpmat;
	mat3_t	rot;
	vec3_t  vr, vup, vf;
	float	rad;

	vf[0] = dir[0];
	vf[1] = dir[1];
	vf[2] = dir[2];

	PerpendicularVector( vr, dir );
	vectorCrossProduct( vr, vf, vup );

	m[0] = vr[0];
	m[3] = vr[1];
	m[6] = vr[2];

	m[1] = vup[0];
	m[4] = vup[1];
	m[7] = vup[2];

	m[2] = vf[0];
	m[5] = vf[1];
	m[8] = vf[2];

	memcpy( im, m, sizeof( im ) );

	im[1] = m[3];
	im[2] = m[6];
	im[3] = m[1];
	im[5] = m[7];
	im[6] = m[2];
	im[7] = m[5];

	memset( zrot, 0, sizeof( zrot ) );
	zrot[0] = zrot[4] = zrot[8] = 1.0F;

	rad = DEG2RAD( degrees );
	zrot[0] = (float)cos( rad );
	zrot[1] = (float)sin( rad );
	zrot[3] = (float)-sin( rad );
	zrot[4] = (float)cos( rad );

	Matrix3x3Multiply( m, zrot, tmpmat );
	Matrix3x3Multiply( tmpmat, im, rot );

	dst[0] = rot[0] * point[0] + rot[1] * point[1] + rot[2] * point[2];
	dst[1] = rot[3] * point[0] + rot[4] * point[1] + rot[5] * point[2];
	dst[2] = rot[6] * point[0] + rot[7] * point[1] + rot[8] * point[2];	
}
开发者ID:Oppen，项目名称:Wolf3DRedux，代码行数:68，代码来源:vector.c


示例5: vector_Perpendicular

static int vector_Perpendicular(lua_State * L)
{
	vec_t          *dst;
	vec_t          *src;

	dst = lua_getvector(L, 1);
	src = lua_getvector(L, 2);

	PerpendicularVector(dst, src);

	return 1;
}
开发者ID:redrumrobot，项目名称:dretchstorm，代码行数:12，代码来源:lua_vector.c


示例6: R_GetSurfaceOrientations

/*
========================
GetSurfaceOrientations
========================
*/
void R_GetSurfaceOrientations( cplane_t *plane,  orientation_t *surface, orientation_t *camera )
{
	VectorCopy( plane->normal, surface->axis[0] );
	PerpendicularVector( surface->axis[1], surface->axis[0] );
	CrossProduct( surface->axis[0], surface->axis[1], surface->axis[2] );

	VectorScale( plane->normal, plane->dist, surface->origin );
	VectorCopy( surface->origin, camera->origin );
	VectorSubtract( vec3_origin, surface->axis[0], camera->axis[0] );
	VectorCopy( surface->axis[1], camera->axis[1] );
	VectorCopy( surface->axis[2], camera->axis[2] );

}
开发者ID:shawnd，项目名称:urt-bumpy-engine，代码行数:18，代码来源:tr_main.c


示例7: RotatePointAroundVector

void RotatePointAroundVector( Coord *dst, Coord dir, Coord point, float degrees )
{
  float	m[3][3];
  float	im[3][3];
  float	zrot[3][3];
  float	tmpmat[3][3];
  float	rot[3][3];
  Coord vr, vup, vf;

  vf.x = dir.x;
  vf.y = dir.y;
  vf.z = dir.z;

  PerpendicularVector( &vr, dir );
  CrossProduct( vr, vf, &vup );
  m[0][0] = vr.x;
  m[1][0] = vr.y;
  m[2][0] = vr.z;

  m[0][1] = vup.x;
  m[1][1] = vup.y;
  m[2][1] = vup.z;

  m[0][2] = vf.x;
  m[1][2] = vf.y;
  m[2][2] = vf.z;

  memcpy( im, m, sizeof( im ) );

  im[0][1] = m[1][0];
  im[0][2] = m[2][0];
  im[1][0] = m[0][1];
  im[1][2] = m[2][1];
  im[2][0] = m[0][2];
  im[2][1] = m[1][2];

  memset( zrot, 0, sizeof( zrot ) );
  zrot[0][0] = zrot[1][1] = zrot[2][2] = 1.0F;

  zrot[0][0] = cos( ( degrees*DEGTORAD ) );
  zrot[0][1] = sin( ( degrees*DEGTORAD ) );
  zrot[1][0] = -sin( ( degrees*DEGTORAD ) );
  zrot[1][1] = cos( ( degrees*DEGTORAD ) );

  R_ConcatRotations( m, zrot, tmpmat );
  R_ConcatRotations( tmpmat, im, rot );

  dst->x = rot[0][0] * point.x + rot[0][1] * point.y + rot[0][2] * point.z;
  dst->y = rot[1][0] * point.x + rot[1][1] * point.y + rot[1][2] * point.z;
  dst->z = rot[2][0] * point.x + rot[2][1] * point.y + rot[2][2] * point.z;
}
开发者ID:anthonyrego，项目名称:with_iron_force，代码行数:51，代码来源:graphics.c


示例8: CG_EffectMark

void CG_EffectMark(qhandle_t markShader, const vec3_t origin, const vec3_t dir, float alpha, float radius)
{
	// 'quick' version of the CG_ImpactMark function

	vec3_t axis[3], originalPoints[4];
	float texCoordScale;
	byte colors[4];
	int i;
	polyVert_t *v, verts[4];

	if (!cg_addMarks.integer) {
		return;
	}

	if (radius <= 0) {
		CG_Error("CG_EffectMark called with <= 0 radius");
	}
	// create the texture axis
	VectorNormalize2(dir, axis[0]);
	PerpendicularVector(axis[1], axis[0]);
	VectorSet(axis[2], 1, 0, 0);	// This is _wrong_, but the function is for water anyway (i.e. usually flat)
	CrossProduct(axis[0], axis[2], axis[1]);

	texCoordScale = 0.5 * 1.0 / radius;

	// create the full polygon
	for (i = 0; i < 3; i++) {
		originalPoints[0][i] = origin[i] - radius * axis[1][i] - radius * axis[2][i];
		originalPoints[1][i] = origin[i] + radius * axis[1][i] - radius * axis[2][i];
		originalPoints[2][i] = origin[i] + radius * axis[1][i] + radius * axis[2][i];
		originalPoints[3][i] = origin[i] - radius * axis[1][i] + radius * axis[2][i];
	}

	colors[0] = 127;
	colors[1] = 127;
	colors[2] = 127;
	colors[3] = alpha * 255;

	for (i = 0, v = verts; i < 4; i++, v++) {
		vec3_t delta;

		VectorCopy(originalPoints[i], v->xyz);
		VectorSubtract(v->xyz, origin, delta);
		v->st[0] = 0.5 + DotProduct(delta, axis[1]) * texCoordScale;
		v->st[1] = 0.5 + DotProduct(delta, axis[2]) * texCoordScale;
		*(int *) v->modulate = *(int *) colors;
	}

	trap_R_AddPolyToScene(markShader, 4, verts);
}
开发者ID:Zekom，项目名称:reaction，代码行数:50，代码来源:cg_atmospheric.c


示例9: RotatePointAroundVector

// This is not implemented very well...
void RotatePointAroundVector( vector3 *dst, const vector3 *dir, const vector3 *point, float degrees ) {
	vector3 m[3], im[3], zrot[3], tmpmat[3], rot[3];
	vector3 vr, vup, vf;
	int	i;
	float	rad;

	vf.x = dir->x;
	vf.y = dir->y;
	vf.z = dir->z;

	PerpendicularVector( &vr, dir );
	CrossProduct( &vr, &vf, &vup );

	m[0].x = vr.x;
	m[1].x = vr.y;
	m[2].x = vr.z;

	m[0].y = vup.x;
	m[1].y = vup.y;
	m[2].y = vup.z;

	m[0].z = vf.x;
	m[1].z = vf.y;
	m[2].z = vf.z;

	memcpy( im, m, sizeof(im) );

	im[0].y = m[1].x;
	im[0].z = m[2].x;
	im[1].x = m[0].y;
	im[1].z = m[2].y;
	im[2].x = m[0].z;
	im[2].y = m[1].z;

	memset( zrot, 0, sizeof(zrot) );
	zrot[0].x = zrot[1].y = zrot[2].z = 1.0f;

	rad = DEG2RAD( degrees );
	zrot[0].x =  cosf( rad );
	zrot[0].y =  sinf( rad );
	zrot[1].x = -sinf( rad );
	zrot[1].y =  cosf( rad );

	MatrixMultiply( m, zrot, tmpmat );
	MatrixMultiply( tmpmat, im, rot );

	for ( i = 0; i < 3; i++ ) {
		dst->raw[i] = DotProduct( &rot[i], point );
	}
}
开发者ID:Arcadiaprime，项目名称:japp，代码行数:51，代码来源:q_math.cpp


示例10: fire_weaponDir

qboolean fire_weaponDir(gentity_t *self, vec3_t start, vec3_t dir, int weaponnum, float quadFactor, int handSide)
{
	vec3_t right, up;

	if (weaponnum <= 0 || weaponnum >= BG_NumWeapons()) {
		return qfalse;
	}

	// Get up and right from dir (which is "forward")
	PerpendicularVector( up, dir );
	CrossProduct( up, dir, right );

	return fire_projectile(self, start, dir, right, up, bg_weaponinfo[weaponnum].projnum,
		quadFactor, bg_weaponinfo[weaponnum].mod, bg_weaponinfo[weaponnum].splashMod, handSide);
}
开发者ID:Extraordinary-Beat-X，项目名称:ebx-code，代码行数:15，代码来源:g_missile.c


示例11: ShotgunPattern

// this should match CG_ShotgunPattern
void ShotgunPattern( vec3_t origin, vec3_t origin2, int seed, gentity_t *ent ) {
	int			i, n, c;
	float		r, u, d;
	vec3_t		end;
	vec3_t		forward, right, up;
	qboolean	hitClient = qfalse;

	// derive the right and up vectors from the forward vector, because
	// the client won't have any other information
	VectorNormalize2( origin2, forward );
	PerpendicularVector( right, forward );
	CrossProduct( forward, right, up );
	n = DEFAULT_SHOTGUN_COUNT;
	d = DEFAULT_SHOTGUN_SPREAD / 2;
	c = 3;
	while (n > 0) {
		float stepSize = (2 * M_PI) / c;
		float step;
		for (step = -M_PI; step < M_PI && n > 0; step += stepSize) {
			r = cos(step) * d;
			u = sin(step) * d;
			VectorMA( origin, 8192, forward, end);
			VectorMA (end, r, right, end);
			VectorMA (end, u, up, end);
			if( ShotgunPellet( origin, end, ent ) && !hitClient ) {
				hitClient = qtrue;
				ent->client->accuracy_hits++;
			}
			n--;
		}
		d += DEFAULT_SHOTGUN_SPREAD / 2;
		c += 4;
	}
	/*
	// generate the "random" spread pattern
	for ( i = 0 ; i < DEFAULT_SHOTGUN_COUNT ; i++ ) {
		r = Q_crandom( &seed ) * DEFAULT_SHOTGUN_SPREAD;  // CPM
		u = Q_crandom( &seed ) * DEFAULT_SHOTGUN_SPREAD;  // CPM
		VectorMA( origin, 8192, forward, end);
		VectorMA (end, r, right, end);
		VectorMA (end, u, up, end);
		if( ShotgunPellet( origin, end, ent ) && !hitClient ) {
			hitClient = qtrue;
			ent->client->accuracy_hits++;
		}
	}
	*/
}
开发者ID:jangroothuijse，项目名称:openpromode，代码行数:49，代码来源:g_weapon.c


示例12: RotateAroundDirection

void RotateAroundDirection( vector3 axis[3], float yaw ) {

	// create an arbitrary axis[1]
	PerpendicularVector( &axis[1], &axis[0] );

	// rotate it around axis[0] by yaw
	if ( yaw ) {
		vector3	temp;

		VectorCopy( &axis[1], &temp );
		RotatePointAroundVector( &axis[1], &axis[0], &temp, yaw );
	}

	// cross to get axis[2]
	CrossProduct( &axis[0], &axis[1], &axis[2] );
}
开发者ID:Arcadiaprime，项目名称:japp，代码行数:16，代码来源:q_math.cpp


示例13: ShotgunPattern

// this should match CG_ShotgunPattern
void ShotgunPattern( vec3_t origin, vec3_t origin2, int seed, gentity_t *ent ) {
	int			i;
	float		r, u;
	vec3_t		end;
	vec3_t		forward, right, up;
	qboolean	hitClient = qfalse;

//unlagged - attack prediction #2
	// use this for testing
	/*
	if ( g_unlagged.integer )
		Com_Printf( "Server seed: %d\n", seed );
		*/
//-unlagged - attack prediction #2

	// derive the right and up vectors from the forward vector, because
	// the client won't have any other information
	VectorNormalize2( origin2, forward );
	PerpendicularVector( right, forward );
	CrossProduct( forward, right, up );

//unlagged - backward reconciliation #2
	// backward-reconcile the other clients
	if ( g_unlagged.integer )
		G_DoTimeShiftFor( ent );
//-unlagged - backward reconciliation #2

	// generate the "random" spread pattern
	for ( i = 0 ; i < DEFAULT_SHOTGUN_COUNT ; i++ ) {
		r = Q_crandom( &seed ) * DEFAULT_SHOTGUN_SPREAD * 16;
		u = Q_crandom( &seed ) * DEFAULT_SHOTGUN_SPREAD * 16;
		VectorMA( origin, 8192 * 16, forward, end);
		VectorMA (end, r, right, end);
		VectorMA (end, u, up, end);
		if( ShotgunPellet( origin, end, ent ) && !hitClient ) {
			hitClient = qtrue;
			ent->client->accuracy_hits++;
		}
	}

//unlagged - backward reconciliation #2
	// put them back
	if ( g_unlagged.integer )
		G_UndoTimeShiftFor( ent );
//-unlagged - backward reconciliation #2
}
开发者ID:themuffinator，项目名称:fnq3，代码行数:47，代码来源:g_weapon.c


示例14: Use_Shooter

void Use_Shooter(gentity_t * ent, gentity_t * other, gentity_t * activator)
{
	vec3_t          dir;
	float           deg;
	vec3_t          up, right;

	// see if we have a target
	if(ent->enemy)
	{
		VectorSubtract(ent->enemy->r.currentOrigin, ent->s.origin, dir);
		VectorNormalize(dir);
	}
	else
	{
		VectorCopy(ent->movedir, dir);
	}

	// randomize a bit
	PerpendicularVector(up, dir);
	CrossProduct(up, dir, right);

	deg = crandom() * ent->random;
	VectorMA(dir, deg, up, dir);

	deg = crandom() * ent->random;
	VectorMA(dir, deg, right, dir);

	VectorNormalize(dir);

	switch (ent->s.weapon)
	{
		case WP_GRENADE_LAUNCHER:
			fire_grenade(ent, ent->s.origin, dir);
			break;
		case WP_ROCKET_LAUNCHER:
			fire_rocket(ent, ent->s.origin, dir);
			break;
		case WP_PLASMAGUN:
			fire_plasma(ent, ent->s.origin, dir);
			break;
	}

	G_AddEvent(ent, EV_FIRE_WEAPON, 0);
}
开发者ID:otty，项目名称:cake3，代码行数:44，代码来源:g_misc.c


示例15: RB_DrawSun

/*
** RB_DrawSun
*/
void RB_DrawSun( float scale, shader_t *shader ) {
	float		size;
	float		dist;
	vec3_t		origin, vec1, vec2;

	if ( !backEnd.skyRenderedThisView ) {
		return;
	}

	//qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
	//qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
	{
		// FIXME: this could be a lot cleaner
		mat4_t translation, modelview;

		Mat4Translation( backEnd.viewParms.or.origin, translation );
		Mat4Multiply( backEnd.viewParms.world.modelMatrix, translation, modelview );
		GL_SetModelviewMatrix( modelview );
	}

	dist = 	backEnd.viewParms.zFar / 1.75;		// div sqrt(3)
	size = dist * scale;

	VectorScale( tr.sunDirection, dist, origin );
	PerpendicularVector( vec1, tr.sunDirection );
	CrossProduct( tr.sunDirection, vec1, vec2 );

	VectorScale( vec1, size, vec1 );
	VectorScale( vec2, size, vec2 );

	// farthest depth range
	qglDepthRange( 1.0, 1.0 );

	RB_BeginSurface( shader, 0, 0 );

	RB_AddQuadStamp(origin, vec1, vec2, colorWhite);

	RB_EndSurface();

	// back to normal depth range
	qglDepthRange( 0.0, 1.0 );
}
开发者ID:BruceJohnJennerLawso，项目名称:ioq3，代码行数:45，代码来源:tr_sky.c


示例16: ShotgunPattern

/*
================
Keep this in sync with ShotgunPattern in CGAME!
================
*/
static void ShotgunPattern( vec3_t origin, vec3_t origin2, int seed, gentity_t *self )
{
	int       i;
	float     r, u, a;
	vec3_t    end;
	vec3_t    forward, right, up;
	trace_t   tr;
	gentity_t *traceEnt;

	// derive the right and up vectors from the forward vector, because
	// the client won't have any other information
	VectorNormalize2( origin2, forward );
	PerpendicularVector( right, forward );
	CrossProduct( forward, right, up );

	// generate the "random" spread pattern
	for ( i = 0; i < SHOTGUN_PELLETS; i++ )
	{
		r = Q_crandom( &seed ) * M_PI;
		a = Q_random( &seed ) * SHOTGUN_SPREAD * 16;

		u = sin( r ) * a;
		r = cos( r ) * a;

		VectorMA( origin, SHOTGUN_RANGE, forward, end );
		VectorMA( end, r, right, end );
		VectorMA( end, u, up, end );

		trap_Trace( &tr, origin, NULL, NULL, end, self->s.number, MASK_SHOT );
		traceEnt = &g_entities[ tr.entityNum ];

		// do the damage
		if ( !( tr.surfaceFlags & SURF_NOIMPACT ) )
		{
			if ( traceEnt->takedamage )
			{
				G_Damage( traceEnt, self, self, forward, tr.endpos, SHOTGUN_DMG, 0, MOD_SHOTGUN );
			}
		}
	}
}
开发者ID:Xecantur，项目名称:Unvanquished，代码行数:46，代码来源:g_weapon.cpp


示例17: CG_ExplosionsDust

void CG_ExplosionsDust( vec3_t pos, vec3_t dir, float radius )
{
	const int count = 32; /* Number of sprites used to create the circle */
	lentity_t *le;
	struct shader_s *shader = CG_MediaShader( cgs.media.shaderSmokePuff3 );

	vec3_t dir_per1;
	vec3_t dir_per2;
	vec3_t dir_temp = { 0.0f, 0.0f, 0.0f };
	int i;
	float angle;

	if( CG_PointContents( pos ) & MASK_WATER )
		return; // no smoke under water :)

	PerpendicularVector( dir_per2, dir );
	CrossProduct( dir, dir_per2, dir_per1 );

	//VectorScale( dir_per1, VectorNormalize( dir_per1 ), dir_per1 );
	//VectorScale( dir_per2, VectorNormalize( dir_per2 ), dir_per2 );

	// make a circle out of the specified number (int count) of sprites
	for( i = 0; i < count; i++ )
	{
		angle = (float)( 6.2831f / count * i );
		VectorSet( dir_temp, 0.0f, 0.0f, 0.0f );
		VectorMA( dir_temp, sin( angle ), dir_per1, dir_temp );
		VectorMA( dir_temp, cos( angle ), dir_per2, dir_temp );
		//VectorScale(dir_temp, VectorNormalize(dir_temp),dir_temp );
		VectorScale( dir_temp, crandom()*8 + radius + 16.0f, dir_temp );
		// make the sprite smaller & alpha'd
		le = CG_AllocSprite( LE_ALPHA_FADE, pos, 10, 10,
			1.0f, 1.0f, 1.0f, 1.0f,
			0, 0, 0, 0,
			shader );
		VectorCopy( dir_temp, le->velocity );
	}       
}
开发者ID:Kaperstone，项目名称:warsow，代码行数:38，代码来源:cg_lents.c


示例18: CG_ShotgunPattern

/*
================
CG_ShotgunPattern

Perform the same traces the server did to locate the
hit splashes
================
*/
static void CG_ShotgunPattern( vec3_t origin, vec3_t origin2, int seed, int otherEntNum )
{
  int       i;
  float     r, u;
  vec3_t    end;
  vec3_t    forward, right, up;
  trace_t   tr;

  // derive the right and up vectors from the forward vector, because
  // the client won't have any other information
  VectorNormalize2( origin2, forward );
  PerpendicularVector( right, forward );
  CrossProduct( forward, right, up );

  // generate the "random" spread pattern
  for( i = 0; i < SHOTGUN_PELLETS; i++ )
  {
    r = Q_crandom( &seed ) * SHOTGUN_SPREAD * 16;
    u = Q_crandom( &seed ) * SHOTGUN_SPREAD * 16;
    VectorMA( origin, 8192 * 16, forward, end );
    VectorMA( end, r, right, end );
    VectorMA( end, u, up, end );

    CG_Trace( &tr, origin, NULL, NULL, end, otherEntNum, MASK_SHOT );

    if( !( tr.surfaceFlags & SURF_NOIMPACT ) )
    {
      if( cg_entities[ tr.entityNum ].currentState.eType == ET_PLAYER ||
          cg_entities[ tr.entityNum ].currentState.eType == ET_BUILDABLE )
        CG_MissileHitEntity( WP_SHOTGUN, WPM_PRIMARY, tr.endpos, tr.plane.normal, tr.entityNum, 0 );
      else if( tr.surfaceFlags & SURF_METALSTEPS )
        CG_MissileHitWall( WP_SHOTGUN, WPM_PRIMARY, 0, tr.endpos, tr.plane.normal, IMPACTSOUND_METAL, 0 );
      else
        CG_MissileHitWall( WP_SHOTGUN, WPM_PRIMARY, 0, tr.endpos, tr.plane.normal, IMPACTSOUND_DEFAULT, 0 );
    }
  }
}
开发者ID:ZdrytchX，项目名称:cuboid，代码行数:45，代码来源:cg_weapons.c


示例19: ShotgunPattern

// this should match CG_ShotgunPattern
void ShotgunPattern( vec3_t origin, vec3_t origin2, int seed, gentity_t *ent ) {
	int			i;
	float		r, u;
	vec3_t		end;
	vec3_t		forward, right, up;
	int			oldScore;
	qboolean	hitClient = qfalse;
	/* LQ3A */
	int			spread;

	// derive the right and up vectors from the forward vector, because
	// the client won't have any other information
	VectorNormalize2( origin2, forward );
	PerpendicularVector( right, forward );
	CrossProduct( forward, right, up );

	oldScore = ent->client->ps.persistant[PERS_SCORE];

	/* LQ3A */
	spread = (g_damageBulletSpread.integer > 0) ? g_damageBulletSpread.integer : 0;

	// generate the "random" spread pattern
	for ( i = 0 ; i < DEFAULT_SHOTGUN_COUNT ; i++ ) {

		/* LQ3A */
		r = Q_crandom( &seed ) * spread * 16;
		u = Q_crandom( &seed ) * spread * 16;

		VectorMA( origin, 8192 * 16, forward, end);
		VectorMA (end, r, right, end);
		VectorMA (end, u, up, end);
		if( ShotgunPellet( origin, end, ent ) && !hitClient ) {
			hitClient = qtrue;
			ent->client->accuracy_hits++;
		}
	}
}
开发者ID:monoknot，项目名称:loaded-q3a，代码行数:38，代码来源:g_weapon.c


示例20: RB_DrawSun

/*
** RB_DrawSun
*/
void RB_DrawSun( void ) {
	bfixed		size;
	bfixed		dist;
	bvec3_t		origin;
	avec3_t		vec1, vec2;
	bvec3_t		bvec1, bvec2;
	bvec3_t		temp;

	if ( !backEnd.skyRenderedThisView ) {
		return;
	}
	if ( !r_drawSun->integer ) {
		return;
	}
	glLoadMatrixX( backEnd.viewParms.world.modelMatrix );
	glTranslateX ( REINTERPRET_GFIXED(backEnd.viewParms._or.origin[0]), 
				   REINTERPRET_GFIXED(backEnd.viewParms._or.origin[1]), 
				   REINTERPRET_GFIXED(backEnd.viewParms._or.origin[2]));

	dist = 	backEnd.viewParms.zFar / BFIXED(1,75);		// div sqrt(3)
	size = dist * BFIXED(0,4);

	FIXED_VEC3SCALE_R( tr.sunDirection, dist, origin );
	PerpendicularVector( vec1, tr.sunDirection );
	CrossProduct( tr.sunDirection, vec1, vec2 );

	FIXED_VEC3SCALE_R( vec1, size, bvec1 );
	FIXED_VEC3SCALE_R( vec2, size, bvec2 );

	// farthest depth range
	glDepthRangeX( GFIXED_1, GFIXED_1 );

	// FIXME: use quad stamp
	RB_BeginSurface( tr.sunShader, tess.fogNum );
		VectorCopy( origin, temp );
		VectorSubtract( temp, bvec1, temp );
		VectorSubtract( temp, bvec2, temp );
		VectorCopy( temp, tess.xyz[tess.numVertexes] );
		tess.texCoords[tess.numVertexes][0][0] = GFIXED_0;
		tess.texCoords[tess.numVertexes][0][1] = GFIXED_0;
		tess.vertexColors[tess.numVertexes][0] = 255;
		tess.vertexColors[tess.numVertexes][1] = 255;
		tess.vertexColors[tess.numVertexes][2] = 255;
		tess.numVertexes++;

		VectorCopy( origin, temp );
		VectorAdd( temp, bvec1, temp );
		VectorSubtract( temp, bvec2, temp );
		VectorCopy( temp, tess.xyz[tess.numVertexes] );
		tess.texCoords[tess.numVertexes][0][0] = GFIXED_0;
		tess.texCoords[tess.numVertexes][0][1] = GFIXED_1;
		tess.vertexColors[tess.numVertexes][0] = 255;
		tess.vertexColors[tess.numVertexes][1] = 255;
		tess.vertexColors[tess.numVertexes][2] = 255;
		tess.numVertexes++;

		VectorCopy( origin, temp );
		VectorAdd( temp, bvec1, temp );
		VectorAdd( temp, bvec2, temp );
		VectorCopy( temp, tess.xyz[tess.numVertexes] );
		tess.texCoords[tess.numVertexes][0][0] = GFIXED_1;
		tess.texCoords[tess.numVertexes][0][1] = GFIXED_1;
		tess.vertexColors[tess.numVertexes][0] = 255;
		tess.vertexColors[tess.numVertexes][1] = 255;
		tess.vertexColors[tess.numVertexes][2] = 255;
		tess.numVertexes++;

		VectorCopy( origin, temp );
		VectorSubtract( temp, bvec1, temp );
		VectorAdd( temp, bvec2, temp );
		VectorCopy( temp, tess.xyz[tess.numVertexes] );
		tess.texCoords[tess.numVertexes][0][0] = GFIXED_1;
		tess.texCoords[tess.numVertexes][0][1] = GFIXED_0;
		tess.vertexColors[tess.numVertexes][0] = 255;
		tess.vertexColors[tess.numVertexes][1] = 255;
		tess.vertexColors[tess.numVertexes][2] = 255;
		tess.numVertexes++;

		tess.indexes[tess.numIndexes++] = 0;
		tess.indexes[tess.numIndexes++] = 1;
		tess.indexes[tess.numIndexes++] = 2;
		tess.indexes[tess.numIndexes++] = 0;
		tess.indexes[tess.numIndexes++] = 2;
		tess.indexes[tess.numIndexes++] = 3;

	RB_EndSurface();

	// back to normal depth range
	glDepthRangeX( GFIXED_0, GFIXED_1);
}
开发者ID:Jsoucek，项目名称:q3ce，代码行数:93，代码来源:tr_sky.cpp



注：本文中的PerpendicularVector函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花
握手
雷人
路过
鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
More+
上一篇：
C++ Persist函数代码示例发布时间：2022-05-30
下一篇：
C++ Permit函数代码示例发布时间：2022-05-30
热门推荐
More+
热门话题
More+
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服（服务时间 9:00～18:00）

在线QQ客服
地址：深圳市南山区西丽大学城创智工业园
电邮：jeky_zhao#qq.com
移动电话：139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap